This paper, the first in a series of four, presents the conceptual design of a subsystem with integrative function based on a Service-Oriented Architecture (SOA), named Geographic...
Fernando Maciel Lima e Sousa, Valdevino Siqueira C...
Information retrieval systems have to deal with uncertain knowledge and query results should reflect this uncertainty in some manner. However, Semantic Web ontologies are based on...
In recent years, there has been an explosion of publicly available RDF and OWL data sources. In order to effectively and quickly answer queries in such an environment, we present...
The world of ontology development is full of mysteries. Recently, ISO Standard 15926 ("Lifecycle Integration of Process Plant Data Including Oil and Gas Production Facilities&...
This paper introduces a visual query system for geographical information systems, which is easy to use for non-professional persons. The system creates a new iconic metaphor — a ...